#include <stdio.h>

void main(){
    float fahr, celsius;

    int lower, upper, step;

    lower = 0;
    upper = 300;
    step = 20;
    fahr = lower;

    printf("fhar-celsius\n");
    while(fahr <= upper){
         celsius = (5.0/9.0) * (fahr - 32.0);

         printf("%3.0f\t%3.1f\n", fahr, celsius);

         fahr = fahr + step;
    }
}